search_doffin

Search Norwegian public procurement notices on Doffin.

Signature: search_doffin(query: string, optional, default ''; types: list of string (comma-separated), optional, default None; statuses: list of string (comma-separated), optional, default None; contract_nature: list of string (comma-separated), optional, default None; cpv_codes: list of string (comma-separated), optional, default None; locations: list of string (comma-separated), optional, default None; buyer: list of string (comma-separated), optional, default None; winner: list of string (comma-separated), optional, default None; date_from: string, optional, default None; date_to: string, optional, default None; sort_by: string, optional, default 'RELEVANCE'; page: integer, optional, default 1; hits_per_page: integer, optional, default 10; include_placeholders: yes/no, optional, default False; limit: integer, items, optional, default 25; offset: integer, items, optional, default 0)

Direct GET

For navigating agents: open the HTML page with parameters in the URL. The result is fetched and displayed without screenshots or form filling.

Open this validated HTML GET URL

https://allemannsdata.com/wiki/kilder/doffin/search_doffin/?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0

Replace {query}, {types}, {statuses}, {contract_nature}, {cpv_codes}, {locations}, {buyer}, {winner}, {date_from}, {date_to}, {sort_by}, {page}, {hits_per_page}, {include_placeholders} with values. Remove unused optional parameters from the URL.

For software and dashboards: Read the operation descriptor. The JSON GET template is https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0. Open this exact request as JSON.

Parameter	Requirement	JSON type	Description
`query`	optional	string	Free-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.
`types`	optional	union	Filter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.
`statuses`	optional	union	ACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.
`contract_nature`	optional	union	WORKS, SERVICES and/or SUPPLIES.
`cpv_codes`	optional	union	8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.
`locations`	optional	union	NUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().
`buyer`	optional	union	Buyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.
`winner`	optional	union	Doffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.
`date_from`	optional	union	Publication date lower bound, "YYYY-MM-DD".
`date_to`	optional	union	Publication date upper bound, "YYYY-MM-DD".
`sort_by`	optional	string	RELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.
`page`	optional	integer	1-based page number.
`hits_per_page`	optional	integer	1-50 (default 10).
`include_placeholders`	optional	boolean	By default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.
`limit`	optional	integer	Gateway page size; default 25, maximum 100.
`offset`	optional	integer	Number of list items to skip; default 0.

Generated JavaScript, Python and response structure

Use JSON when the user requests code, machine-readable data, value extraction or further computation. Use the HTML GET page to identify the correct source and verify parameters.

Example for generated JavaScript and Python

https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0

Replace URL placeholders and remove unused optional parameters.

JavaScript in a dashboard

const url = "https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0";
const response = await fetch(url);
if (!response.ok) {
  const failure = await response.json();
  throw new Error(`${failure.error.code}: ${failure.error.message} ${failure.suggestion}`);
}
const result = await response.json();
const data = result.data;

Python without additional packages

import json
from urllib.request import urlopen

url = "https://allemannsdata.com/wiki/api/v1/kilder/doffin/search_doffin?query=&types={types}&statuses={statuses}&contract_nature={contract_nature}&cpv_codes={cpv_codes}&locations={locations}&buyer={buyer}&winner={winner}&date_from={date_from}&date_to={date_to}&sort_by=RELEVANCE&page=1&hits_per_page=10&include_placeholders=false&limit=25&offset=0"
with urlopen(url) as response:
    result = json.load(response)
data = result["data"]

Response structure

{
  "source": "doffin",
  "operation": "search_doffin",
  "parameters": {},
  "data": {},
  "entities": [],
  "_meta": {"retrieved_at": "...", "sources": [], "cache": {}},
  "_links": {"self": "...", "source": "...", "wiki": "...", "feedback": "..."}
}

Form for manual use

The form is a fallback for people and browser agents that cannot open the GET URL directly.

query Type: string. Free-text search (Norwegian or English), e.g. "IT-drift", "snørydding", "rammeavtale konsulent". Start here.

types Type: list of string (comma-separated). Filter by notice type. Parent types: PLANNING, COMPETITION, RESULT. Specific types: ANNOUNCEMENT_OF_COMPETITION, DYNAMIC_PURCHASING_SCHEME, QUALIFICATION_SCHEME, ANNOUNCEMENT_OF_INTENT, PRE_ANNOUNCEMENT, ADVISORY_NOTICE, NOTICE_ON_BUYER_PROFILE, ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT, CHANGE_OF_CONCLUSION_OF_CONTRACT, CANCELLED_OR_MISSING_CONCLUSION_OF_CONTRACT. Use ["COMPETITION"] + statuses=["ACTIVE"] for open tenders.

statuses Type: list of string (comma-separated). ACTIVE (open for bids), EXPIRED, AWARDED, CANCELLED.

contract_nature Type: list of string (comma-separated). WORKS, SERVICES and/or SUPPLIES.

cpv_codes Type: list of string (comma-separated). 8-digit CPV codes, e.g. ["45000000"]. Matches the code and its children. Find codes with search_cpv_codes(). Best combined with a free-text query.

locations Type: list of string (comma-separated). NUTS-style location ids, e.g. ["NO060"] (Trøndelag), or "anyw" for non-location-bound. See list_location_codes().

buyer Type: list of string (comma-separated). Buyer organization full name(s) exactly as written on notices, e.g. ["Trondheim kommune"]. Resolved to Doffin's internal buyer id via a free-text lookup; names that match no buyer are reported in "note" and, if none match, no results are returned (rather than an unfiltered search). Pass the 32-hex buyer id from a result's buyer field directly to skip the lookup.

winner Type: list of string (comma-separated). Doffin's internal supplier id (32-hex). Winner names cannot be used - they are not present in search results to resolve against.

date_from Type: string. Publication date lower bound, "YYYY-MM-DD".

date_to Type: string. Publication date upper bound, "YYYY-MM-DD".

sort_by Type: string. RELEVANCE (default), PUBLICATION_DATE_DESC, PUBLICATION_DATE_ASC, DEADLINE, ESTIMATED_VALUE_ASC, ESTIMATED_VALUE_DESC.

page Type: integer. 1-based page number.

hits_per_page Type: integer. 1-50 (default 10).

include_placeholders Type: yes/no. By default, hits whose buyer fields look like unfilled eForm template values (org id 123456789, placeholder buyer names) are dropped from the results as junk. Set True to keep them, each flagged with "possible_placeholder": true.

Result

Source: Doffin and TED. Retrieved 2026-10-27T16:25:57Z in 0.160 seconds.

total_count:

hits:

5 results

id:
2024-100829
buyer:
1 results
1. id:
  3b72c6f21b59b3b79d655c2ded9b09e1
  organization_id:
  940100925
  name:
  Ringerike Kommune
heading:
Intensjonskunngjøring - Kjøp av program for utarbeidelse og redigering av digitale plandata
description:
Ringerike kommune har til intensjon å inngå kontrakt med Focus Software AS for løpende tjenestekjøp over internett. Dette innebærer kjøp av programmet Focus Arealplan med tilhørende nødvendige lisenser.Kontraktsverdi pr år er: kr 82 013,-Oppdragsgiver har konkludert med at vi i denne prosessen står ovenfor en eneleverandørsituasjon etter FOA §13-4 bokstav b nr. 2, som følge av at Focus Software AS er eneste leverandør som leverer denne tjenesten, til vårt formål, basert på AutoCAD som baseprogram.
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2024-01-19T12:52:04Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2024-01-20
placeOfPerformance:
- Viken
procurementStrategicLabels:
No results.
id:
2021-335359
buyer:
9 results
1. id:
  8a9c276fa539c5b428889ccdcce5888e
  organization_id:
  921 693 230
  name:
  Viken fylkeskommune
2. id:
  b31edd15b34adf60e1dcaed70e028667
  organization_id:
  920 717 152
  name:
  Innlandet fylkeskommune
3. id:
  23d54633f622c00aac29f78ebad26838
  organization_id:
  922 420 866
  name:
  Troms og Finnmark fylkeskommune
4. id:
  7d0c624a03acbde5e02263d64544166d
  organization_id:
  964 982 953
  name:
  Nordland fylkeskommune
5. id:
  ecda3e9e3f6a20fd5fc54552ed81823f
  organization_id:
  944 183 779
  name:
  Møre og Romsdal fylkeskommune
6. id:
  61d8d35467c71442f93ef5bd1a5669dd
  organization_id:
  821 311 632
  name:
  Vestland fylkeskommune
7. id:
  4298c73e49748a1f13589320dd94e2b6
  organization_id:
  971 045 698
  name:
  Rogaland fylkeskommune
8. id:
  b4d07b65979ff1c7968dc28b60d375d4
  organization_id:
  921 707 134
  name:
  Agder fylkeskommune
9. id:
  77a4e0bd294a905358d9ea4a2229bfa5
  organization_id:
  821 227 062
  name:
  Vestfold og Telemark fylkeskommune
heading:
Anskaffelse av prosjekteringsverktøy for arealplanlegging og grunnerverv
description:
Fylkeskommunene (med unntak av Oslo) innbyr til åpen anbudskonkurranse, med sikte på å inngå rammeavtale med en leverandør for anskaffelse av prosjekteringsverktøy for hhv arealplanlegging og grunnerverv. Tilbudet skal inkludere bruksrett, vedlikehold og brukerstøtte av løsning til bruk i det norske markedet. I tillegg inkluderer anskaffelsen mulighet for kjøp av konsulenttjenester som står i sammenheng med etablering og installasjon av løsningen.
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-07-07T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-07-07
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2019-313569
buyer:
1 results
1. id:
  644c61c33ce8c84f3a21be2d38c00a60
  organization_id:
  964 951 373
  name:
  Buskerud fylkeskommune
heading:
Veiledende kunngjøring - Tilgjengeliggjøring av programvare
description:
Fylkeskommunene skal overta forvaltningen av fylkesveiene fra Statens vegvesen 01.01.2020. SAMS IKT- prosjektet bistår med å tilgjengeliggjøre nødvendige IKT-systemer og programvare for de ansatte som skal overføres til i fylkeskommunene fra 1.1.2020 slik at de fortsatt kan utføre sine arbeidsoppgaver ifm. veiadministrasjon for fylkesveger. Dette omfatter også verktøy for utarbeidelse av arealplaner og erverv av grunn. Overføringen skal gjøres med minst mulig risiko for feil og forsinkelser.
location_id:
No results.
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_INTENT
allTypes:
2 results
1. ANNOUNCEMENT_OF_INTENT
2. RESULT
status:
not reported by source
issueDate:
2019-10-19T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2019-10-19
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2024-109794
buyer:
1 results
1. id:
  a1c030de06abd8d3cea2d69ffa5f994f
  organization_id:
  986252932
  name:
  Statens innkjøpssenter v/DFØ
heading:
Third Party Privacy Compliance Management - Request for Information
description:
We seek a robust and predominantly Software-as-a-Service (SaaS) based Privacy Third Party (Vendor) Compliance Management solution for the Norwegian public sector to effectively navigate the complex landscape of data privacy regulations and improve the protection and control of personal information through assessment and management of supply chain data protection agreements (DPAs) as required by GDPR. The solution will be a component in ensuring compliance, mitigating risks, and maintaining the trust of our customers and stakeholders. As some documentation handled by the solution likely will contain business confidential and / or sensitive personally identifiable information, we will have focus on infromation security and GDPR compliance. Please see attached document for further information.
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ADVISORY_NOTICE
allTypes:
2 results
1. ADVISORY_NOTICE
2. PLANNING
status:
not reported by source
issueDate:
2024-06-25T16:38:36Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2024-06-27
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2020-301153
buyer:
1 results
1. id:
  7fcceaaff6948f767e629e00b5fcc8d1
  organization_id:
  916879067
  name:
  SYKEHUSINNKJØP HF
heading:
Tøylogistikkløsning til Nordlandssykehuset
description:
Anskaffelsen gjelder en tøylogistikkløsning for Nordlandssykehuset (NLSH) fra Focus Security AS. (informasjon om leverandøren finnes her: https://www.focussecurity.info/ )
location_id:
1 results
1. NO071
estimatedValue:
not reported by source
type:
ADVISORY_NOTICE
allTypes:
2 results
1. ADVISORY_NOTICE
2. PLANNING
status:
not reported by source
issueDate:
2020-01-22T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2020-01-22
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

Show all fields in HTML

total_count:

hits:

5 results

id:
2024-100829
buyer:
1 results
1. id:
  3b72c6f21b59b3b79d655c2ded9b09e1
  organization_id:
  940100925
  name:
  Ringerike Kommune
heading:
Intensjonskunngjøring - Kjøp av program for utarbeidelse og redigering av digitale plandata
description:
Ringerike kommune har til intensjon å inngå kontrakt med Focus Software AS for løpende tjenestekjøp over internett. Dette innebærer kjøp av programmet Focus Arealplan med tilhørende nødvendige lisenser.Kontraktsverdi pr år er: kr 82 013,-Oppdragsgiver har konkludert med at vi i denne prosessen står ovenfor en eneleverandørsituasjon etter FOA §13-4 bokstav b nr. 2, som følge av at Focus Software AS er eneste leverandør som leverer denne tjenesten, til vårt formål, basert på AutoCAD som baseprogram.
location_id:
4 results
1. NO085
2. NO084
3. NO083
4. NO082
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2024-01-19T12:52:04Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2024-01-20
placeOfPerformance:
- Viken
procurementStrategicLabels:
No results.
id:
2021-335359
buyer:
9 results
1. id:
  8a9c276fa539c5b428889ccdcce5888e
  organization_id:
  921 693 230
  name:
  Viken fylkeskommune
2. id:
  b31edd15b34adf60e1dcaed70e028667
  organization_id:
  920 717 152
  name:
  Innlandet fylkeskommune
3. id:
  23d54633f622c00aac29f78ebad26838
  organization_id:
  922 420 866
  name:
  Troms og Finnmark fylkeskommune
4. id:
  7d0c624a03acbde5e02263d64544166d
  organization_id:
  964 982 953
  name:
  Nordland fylkeskommune
5. id:
  ecda3e9e3f6a20fd5fc54552ed81823f
  organization_id:
  944 183 779
  name:
  Møre og Romsdal fylkeskommune
6. id:
  61d8d35467c71442f93ef5bd1a5669dd
  organization_id:
  821 311 632
  name:
  Vestland fylkeskommune
7. id:
  4298c73e49748a1f13589320dd94e2b6
  organization_id:
  971 045 698
  name:
  Rogaland fylkeskommune
8. id:
  b4d07b65979ff1c7968dc28b60d375d4
  organization_id:
  921 707 134
  name:
  Agder fylkeskommune
9. id:
  77a4e0bd294a905358d9ea4a2229bfa5
  organization_id:
  821 227 062
  name:
  Vestfold og Telemark fylkeskommune
heading:
Anskaffelse av prosjekteringsverktøy for arealplanlegging og grunnerverv
description:
Fylkeskommunene (med unntak av Oslo) innbyr til åpen anbudskonkurranse, med sikte på å inngå rammeavtale med en leverandør for anskaffelse av prosjekteringsverktøy for hhv arealplanlegging og grunnerverv. Tilbudet skal inkludere bruksrett, vedlikehold og brukerstøtte av løsning til bruk i det norske markedet. I tillegg inkluderer anskaffelsen mulighet for kjøp av konsulenttjenester som står i sammenheng med etablering og installasjon av løsningen.
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
allTypes:
2 results
1. ANNOUNCEMENT_OF_CONCLUSION_OF_CONTRACT
2. RESULT
status:
not reported by source
issueDate:
2021-07-07T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2021-07-07
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2019-313569
buyer:
1 results
1. id:
  644c61c33ce8c84f3a21be2d38c00a60
  organization_id:
  964 951 373
  name:
  Buskerud fylkeskommune
heading:
Veiledende kunngjøring - Tilgjengeliggjøring av programvare
description:
Fylkeskommunene skal overta forvaltningen av fylkesveiene fra Statens vegvesen 01.01.2020. SAMS IKT- prosjektet bistår med å tilgjengeliggjøre nødvendige IKT-systemer og programvare for de ansatte som skal overføres til i fylkeskommunene fra 1.1.2020 slik at de fortsatt kan utføre sine arbeidsoppgaver ifm. veiadministrasjon for fylkesveger. Dette omfatter også verktøy for utarbeidelse av arealplaner og erverv av grunn. Overføringen skal gjøres med minst mulig risiko for feil og forsinkelser.
location_id:
No results.
estimatedValue:
not reported by source
type:
ANNOUNCEMENT_OF_INTENT
allTypes:
2 results
1. ANNOUNCEMENT_OF_INTENT
2. RESULT
status:
not reported by source
issueDate:
2019-10-19T10:00:00Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2019-10-19
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.
id:
2024-109794
buyer:
1 results
1. id:
  a1c030de06abd8d3cea2d69ffa5f994f
  organization_id:
  986252932
  name:
  Statens innkjøpssenter v/DFØ
heading:
Third Party Privacy Compliance Management - Request for Information
description:
We seek a robust and predominantly Software-as-a-Service (SaaS) based Privacy Third Party (Vendor) Compliance Management solution for the Norwegian public sector to effectively navigate the complex landscape of data privacy regulations and improve the protection and control of personal information through assessment and management of supply chain data protection agreements (DPAs) as required by GDPR. The solution will be a component in ensuring compliance, mitigating risks, and maintaining the trust of our customers and stakeholders. As some documentation handled by the solution likely will contain business confidential and / or sensitive personally identifiable information, we will have focus on infromation security and GDPR compliance. Please see attached document for further information.
location_id:
1 results
1. anyw
estimatedValue:
not reported by source
type:
ADVISORY_NOTICE
allTypes:
2 results
1. ADVISORY_NOTICE
2. PLANNING
status:
not reported by source
issueDate:
2024-06-25T16:38:36Z
deadline:
not reported by source
sentToTed:
yes
publicationDate:
2024-06-27
placeOfPerformance:
- Ikke stedbunden
procurementStrategicLabels:
No results.
id:
2020-301153
buyer:
1 results
1. id:
  7fcceaaff6948f767e629e00b5fcc8d1
  organization_id:
  916879067
  name:
  SYKEHUSINNKJØP HF
heading:
Tøylogistikkløsning til Nordlandssykehuset
description:
Anskaffelsen gjelder en tøylogistikkløsning for Nordlandssykehuset (NLSH) fra Focus Security AS. (informasjon om leverandøren finnes her: https://www.focussecurity.info/ )
location_id:
1 results
1. NO071
estimatedValue:
not reported by source
type:
ADVISORY_NOTICE
allTypes:
2 results
1. ADVISORY_NOTICE
2. PLANNING
status:
not reported by source
issueDate:
2020-01-22T10:00:00Z
deadline:
not reported by source
sentToTed:
no
publicationDate:
2020-01-22
placeOfPerformance:
No results.
procurementStrategicLabels:
No results.

limit:

offset:

returned:

has_more_results:

Will you use the result in generated code?

Open the same result as JSON

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How an AI agent should use this page

Ground rule: Navigate with HTML GET links to keep explanations and relationships. Use the page's JSON alternative only when concrete values must be extracted, compared or computed.

How to use the search_doffin lookup

Replace the placeholders in the HTML GET template; remove optional parameters you do not need.
Check types, units, limits and ID formats in the parameter table.
Follow linked results to canonical pages before combining sources.

Misreading to avoid: An empty list means "no results for this lookup". An error message or unavailable source does not mean the data does not exist.

Source-specific next step

Follow the notice ID to the canonical page; use CPV and location codes to narrow broad free-text searches.

Go to the source page for other operations. Use the JSON template only after the HTML result shows that the parameters and source are correct.

AI agent? Read the complete navigation and programming guide.